US EPA

8747550 

Journal Article 

Hydrocarbon geology and reservoir formation characteristics of Niger Delta Basin 

Deng, RJ; Deng, YH; Yu, S; Hou, DJ 

2008 

1 

Shiyou Kantan yu Kaifa
ISSN: 1000-0747 

35 

6 

755-762 

Chinese 

Niger Delta Basin is abundant in oil and gas resources. Based on over 50 years of petroleum exploration and development and major geological data for the basin, this paper studies its petroleum geology characteristics and summarizes its reservoir formation and hydrocarbon enrichment rules. Niger Delta Basin is a passive continental margin basin developed in early Cretaceous in association with the breakup of Gondwana and the opening of South and Equatorial Atlantic and evolved two tectonic stages, namely rifting and drifting. Long-term marine regression since Eocene resulted in the Niger Delta, with three lithostratic units developed from bottom to top, i.e. Akata Formation, Agbada Formation and Benin Formation. During deltaic progradation, under the continental gravity, three structural zones were developed from north to south, which are extensional structure of Niger Delta, diapiric structure and obduction nappe structure. The large diapiric-obduction structural trap in deep water and the deep large faulted trap, faulted-nose structural trap and large lithologic trap at flank of structure in land-shallow water extensional structure are major future targets to explore large oil and gas fields in Niger Delta Basin. 

Exploration and development achievements; Hydrocarbon geology; Niger delta; Reservoir formation; Structural-depositional belt